145313555 has 8 divisors (see below), whose sum is σ = 178431792. Its totient is φ = 113547168.

The previous prime is 145313551. The next prime is 145313561. The reversal of 145313555 is 555313541.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 145313555 - 2² = 145313551 is a prime.

It is a super-2 number, since 2×145313555² = 42232058533476050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (145313551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337724 + ... + 338153.

It is an arithmetic number, because the mean of its divisors is an integer number (22303974).

Almost surely, 2^145313555 is an apocalyptic number.

145313555 is a deficient number, since it is larger than the sum of its proper divisors (33118237).

145313555 is an equidigital number, since it uses as much as digits as its factorization.

145313555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675925.

The product of its digits is 22500, while the sum is 32.

The square root of 145313555 is about 12054.6072105233. The cubic root of 145313555 is about 525.7372016809.

The spelling of 145313555 in words is "one hundred forty-five million, three hundred thirteen thousand, five hundred fifty-five".